工艺与制造英文2024被引 9
硅烷偶联剂改性金属加热元件增强阻力焊接玻纤/PP热塑性复合材料的搭接剪切性能
Enhancing the Lap Shear Performance of Resistance-Welded GF/PP Thermoplastic Composite by Modifying Metal Heating Elements with Silane Coupling Agent
Wanling Long, Xinyu Zhou, Bing Du, Xiangrong Cheng, Guiyang Su, Liming Chen · Chongqing University of Science and Technology
摘要整理
热塑性复合材料因其优异的耐久性、抗损伤性和可回收性，在航空航天及其他工业领域获得广泛应用。本研究通过硅烷偶联剂改性不锈钢网（SSM）加热元件，以增强阻力焊接玻纤增强聚丙烯（GF/PP）热塑性复合材料的搭接剪切强度（LSS）。系统评估了氧化温度、溶剂性质和溶液pH值对焊接接头LSS的影响。采用扫描电子显微镜（SEM）观察不锈钢网表面形貌，评估界面粘接性能的改善情况。研究结果表明，表面处理促进树脂向不锈钢网内部渗透，从而增强阻力焊接接头的搭接剪切强度。在最优条件下处理（氧化温度500 °C、乙醇溶剂、pH 11），相比未处理接头，LSS提高了27.2%。
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